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Store a variable for currArguments.
If no timeout is in progress, immediately execute the function and create a timeout. If a timeout is in progress, set the currArguments to the new arguments.
When the timeout is done: if currArguments is null, do nothing. Otherwise, execute the function with currArguments and create another timeout.
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Jot down your thoughts, approach, and key learnings
Throttling is a technique used to limit how frequently a function can run. It is commonly used for events like scrolling, resizing, or rapid user interactions to improve performance.
Yes, throttling and debouncing are common interview topics, especially for frontend or JavaScript-focused roles. Interviewers often ask candidates to implement throttle logic to test understanding of closures, timers, and event control.
No complex data structures are required. The solution typically relies on simple variables to store timestamps, pending arguments, and a timer reference for scheduling delayed execution.
The optimal approach uses a combination of a last execution timestamp and a timer. If the function is called before the cooldown period ends, the latest call is saved and executed once the time window expires.